121895768 has 16 divisors (see below), whose sum is σ = 238492080. Its totient is φ = 58297888.

The previous prime is 121895759. The next prime is 121895777. The reversal of 121895768 is 867598121.

It is an interprime number because it is at equal distance from previous prime (121895759) and next prime (121895777).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 331055 + ... + 331422.

It is an arithmetic number, because the mean of its divisors is an integer number (14905755).

Almost surely, 2^121895768 is an apocalyptic number.

It is an amenable number.

121895768 is a deficient number, since it is larger than the sum of its proper divisors (116596312).

121895768 is a wasteful number, since it uses less digits than its factorization.

121895768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662506 (or 662502 counting only the distinct ones).

The product of its digits is 241920, while the sum is 47.

The square root of 121895768 is about 11040.6416480203. The cubic root of 121895768 is about 495.8262810820.

The spelling of 121895768 in words is "one hundred twenty-one million, eight hundred ninety-five thousand, seven hundred sixty-eight".